Collapsible tire building and finishing core



J. R. QUIN COLLAPSIBLE TIRE BUILDING AND FINISHING CORE Filed Sent. 6, 1922 3 Sheets-Sheet l Jusa h E- uin J. R. QUIN coLLAPsIBLE TIRE BUILDING AND FINISHING CORE Aug. 2.1, 1923. 1,465,79

Filed Sept. 6, 1922 3 Sheets-Sheet 2,

Jus EFlh R- Quin 0 @uk %V Aug. 21, 1923.

J. R. QUIN COLLAPSIBLE TIRE BUILDING AND FINISHING CORE 3 Sheets-Sheet 5 Filed Sent. 6, 1922 J05 E'Flh R Quin Patented Aug. 21, 192 3.

JOSEPH a. .QUVIVN, or CUDAHY, WISCONSIN. is

I F E coLLArsrBLE TIRE BUILDING. AND rrn rsrrrive oonnl.

Application filed- September T aZZ "whom it may concern:

ishing of casings such as tires for automobiles r l iereto fore it has been the practice to form the tireupon one core, remove it and replace it upon a finishing; core. This needless complication has been necessary, with former 1 types of cases primarily because or the relative inaccessibility of certain portions of the the when mounted upon. the core used in itsmanufacture. V V 7 It is therefore a primary object of this invention to provide a core upon which the tire may be both formed and finished without removing "the tire from the core.

Further objects are to provide a core which is so mounted that it may be readily tilted to any desired angle, to provide ready accessto all sides of thertir'e to provide a readilyrotated-core, and to provide highly serviceable" and practical type of core.

urther objects are to provide a core in whichythc various sections may be readily withdrawn in a simpleandefi'ective manner from. the tire, to provide simple means for effecting such withdrawah and to provide a composite .core in which vmost of its parts may he withdrawn;without moving them' from the plane of the tire. t

An embodiment of the invention is shown in th accompanying drawings, in'which: Figure Lisa plan view of the 'core withv the upper cap of the body portion'rei'noved. Figure 2 is a fragmentary detail showing the position occupied by one of the, core sections in its first or initial movement. Figure 3 is a plan view of thedevice withthe core'sections retracted. V e

' Figure 4; is a sectional view on the 'line 44- ot Figure l, drawn to an enlarged scale. Fimire 5 is a vertical sectional view on the line 5 5 of"Fig11re 6 Figure 6 is a sectional view on the line 6 -6 of Figure 1. V

The device comprises a body portion which 6, 1922. Serial No. 586,447.

may be a hollow. cylindrical member having a closed end 1, a circular wall 2, and a removable end or cap 3. The endinay con Yeniently be retained by apluralityiof bolts 4 threaded into bosses 5, extending upwardly lfronrtheiend portion 1. A plurality of radially arranged guide-ways 6 areformedintegrally with the end 1 and. sides 2 and serve to guide racks 7. A plurality of circularly irecessed casings 8 are provided adjacent,-

and opening-.into,-th'e guide-way Gandare designed to house pinions or gears 9; such pinions being rigidly attached to spindles qwhich project outwardly from the body portion, preferably through the end 3. The spindles are provided with squareends 10 by I means of which they may be rotated, vas for example by a similarly aperturedcrank.

The core proper'c omprises a vplurality of sections 11 12313; and 14. The section 11' may be rigidly supported from the body portion by means of a bracket bolted respectively to such section and to the body portion.- The sections 12 and 14: are rigidly attached to theirrespective racks and are adapted. to be moved directly radially in} wardly. The section 13 is pivotally joined to its rack in'any suitable manner, asfor example by' means of a sleeve 16 slidably locked to a circular-portion 17 of the rack.

The sleevellfi conveniently be pro- ,vided with outwardly projecting hollow ears; =18, within which are slidably held plungers ,19 which carryballs 20 at theirinner ends,

as shown in Figure l. These'plungers are adapted to be spring pressed inwardly'by means iof'hehcal springs 21 bearing atfione end against fthe plunger and at the other endagainst adjustablestops QQthreaded into 7 the hollow earsl8-suitablei projections 23 being preferably formed upon the plunger's and stops and adapted to center the springs 21.' These-balls 2O are'adapted to'seat within recesses 24: formed within'the circularfportion 17 of -the rack and to temporarily-lock the sectionx13 ot' thecore in eitherlone of two] angular positions, as shown in Figures 1andi3. it

"The bodyportion is provided with a plu-i rality o'f lugs 25, between whichis attached annular member 26 provided'with'a-pluality ofapertures 27. A revolubly' mounted standard 28 is pivoted to the body portion by means of a pin 29 passed through 7 relative widely spaced lugs 30. and through standard 28.

an enlarged portion 31 formed upon the The standard is slotted, as indicated at .32, and is adapted to sildab-ly receive the arcuate member 28. It is provided with an aperture at right angles to the slot and adapted to a'line with any one of the apertures 27. A pin 33 is adapted to be passed through the alined apertures to thereby lock the arcuate Vmember to the standard-thus providing means for. locking the corein any-desired angular position. The standard may be mounted in a "In this position the operator may have ready access to the tire, particularly the 7 sides thereof, as the co-remay be angularly tilted in any desiredposition. Heretofore it has been necessary to remove the tires from the moulds and place them upon other finishing moulds. This, however, is entirely avoided by the invention herein outlined, as the tire may be leftupon the mould and may be finished without. removing it from such mould. When zitis desired to remove the tire from the mould, the section 13 is first retracted by rotating its appropriate 'gearthe pivotally' mounted retaining clips 36 having been first removed out of the'way.

After the core section 13 has been moved inwardly a sufiicie'nt distance, as indicated in Figure 2, it may be rotated to the position shown in Figure 3. Thereafter the sections 12 and 13 are moved inwardly by their racks and pinions. The tire may then be readily removed from the section 11.

Irwin beseen that a mould has been provided for a tire, in which the entire operation of forming and "finishing atire may be perforrnedwhile the tire is upon the mould, without: necessitating its removal there-from.- It will also be seen that an extremely simpleand eliicacious device has been provided, whereby the several sections ofthe mould may be moved directly inwardlywithout rocking them or angularly displafiethemfrom the-plane of the core.

1t will 'also be seen that adequate clearance is provided by pivotally mountingone of saidrsections and providing for its rotatire movement after it has been retracted directly inwardly.

Wisconsin;

I claim 1. A-core for a tire comprising a core portion, a body portion from which said core portion is supported, a revolubly mounted standard pivotally joined to said body portion, a curved member joined to said body portion and slidably associated with said standard, andv means for locking said member and standard together.

2. A core for a tire comprising a body portion, acore proper supported therefrom, an apertured arcuate member secured to said body portion, an apertured standard pivota lly joined to said body portion, and means adapted to cooperate with the apertures in said arcuate member and standard whereby said core maybe held with its central plane a atan-y desired angle to the axis of said standard.

A core tor a tire comprising a body portion, acore proper carried therefrom, a revolubly mounted standard pivotally j oined to said body portion and having a slot therethr'o-ugh and an aperture at right angles to said slot, an arcuate inemberse cured to said body portion and slidably received in saidslo-t and having a series of apertures adapted toaline with the aperture in said-standard, and a pinadapted to pass through such alining apertures, whereby said core is adjustably held'both angularly and revolub'ly. a a

'4. A collapsible annular core comprising a plurality of relatively movable core sections, a body portion located within the outracks secured to said core sections and slid ably held ithin'said body portion, and a plurality oi? pinions adapted to retract said racks and draw'the core sections into disengaged position, one of said sections being pivotally joined to its corresponding rack and adapted to rotate about an axis extendporarily retaining said section in any one 1 line of said core sections, a plurality of of: several angular positions relatively to its rack. V a In'testi'mony that I claim the foregoing 'I have hereunto set my hand at Milwaukee,

in the county of Milwaukee-and state of JosErr-i n. ours, 

